2085507577 has 2 divisors, whose sum is σ = 2085507578. Its totient is φ = 2085507576.

The previous prime is 2085507539. The next prime is 2085507587. The reversal of 2085507577 is 7757055802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1437092281 + 648415296 = 37909^2 + 25464^2 .

It is a cyclic number.

It is not a de Polignac number, because 2085507577 - 2⁷ = 2085507449 is a prime.

It is not a weakly prime, because it can be changed into another prime (2085507527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1042753788 + 1042753789.

It is an arithmetic number, because the mean of its divisors is an integer number (1042753789).

Almost surely, 2^2085507577 is an apocalyptic number.

It is an amenable number.

2085507577 is a deficient number, since it is larger than the sum of its proper divisors (1).

2085507577 is an equidigital number, since it uses as much as digits as its factorization.

2085507577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 686000, while the sum is 46.

The square root of 2085507577 is about 45667.3578937954. The cubic root of 2085507577 is about 1277.6265377625.

The spelling of 2085507577 in words is "two billion, eighty-five million, five hundred seven thousand, five hundred seventy-seven".